What Triggers Keratosis Pilaris?

Reviewed on 8/26/2020

What Is Keratosis Pilaris?

There are no specific triggers for keratosis pilaris, (tiny harmless skin bumps). Family history, eczema and other skin conditions may be a risk factor for this condition.
There are no specific triggers for keratosis pilaris, (tiny harmless skin bumps). Family history, eczema and other skin conditions may be a risk factor for this condition.

Keratosis pilaris is a common skin condition in which tiny bumps appear on the skin. The bumps are harmless plugs of dead skin cells and tend to appear on the upper arms, front of the thighs, and cheeks. Keratosis pilaris is frequently seen along with atopic dermatitis and ichthyosis vulgaris.

14 Symptoms of Keratosis Pilaris?

14 symptoms of keratosis pilaris include:

  1. Tiny, rough-feeling bumps on the skin
  2. May look like goosebumps or a plucked chicken
  3. May resemble small pimples
  4. May be grouped or scattered
  5. Usually occurs in children and adolescents, and sometimes infants
  6. Tends to appear on the upper arms, front of the thighs, and cheeks
  7. May sometimes occur on the face, trunk, buttocks, and lower legs or forearms
  8. May clear during the summer and recur in winter
  9. May worsen during pregnancy
  10. Usually improves with age but may persist into adulthood
  11. May appear in different colors, including the same color as the patient’s skin, as well as white, red, pinkish purple (on fair skin), and brownish black (on dark skin)
  12. Itching
  13. Dryness
  14. Skin redness

Keratosis pilaris is often associated with other skin conditions, such as atopic dermatitis or ichthyosis vulgaris

What Triggers Keratosis Pilaris?

Keratosis pilaris is caused by a buildup of keratin that forms a plug blocking the opening of hair follicles, but the cause is not fully understood. Keratosis pilaris has been associated with mutations of filaggrin, a protein that binds to keratin. It may be genetic. 

It is not contagious and there does not seem to be any specific trigger. 

Risk factors for developing keratosis pilaris include:

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Reviewed on 8/26/2020
References
Medscape Medical Reference